Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cd3d5d29adf3fbb…

MALICIOUS

PDF

327.2 KB Created: 2022-03-24 02:56:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-15
MD5: 76125849db702ab994ce6693b2ea6e84 SHA-1: 6cc4a33fc73f7f0da4d639a79806a5029773b6a0 SHA-256: 4cd3d5d29adf3fbbf0a23027e935a806b9069c1924b8a8402e39508702aa4c12
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6297

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://cafij.co.za/XSRYdR1H?utm_term=cevio+creative+studio+free+dl PDF link annotation
    • https://www.jornaloflorense.com.br/admin/ckeditor/kcfinder/upload/files/16098144766.pdfIn PDF document text
    • https://sangolongphuong.vn/longphuong/news/files/93265764888.pdfIn PDF document text
    • http://mirutte.com/newsfiles/files/wetunarepinupafaja.pdfIn PDF document text
    • http://bnrware.com/uploadfile/fckeditor/file/rulix.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/162328847df15d---39460279019.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/zabuxapuzuwujewafigexafij.pdfIn PDF document text
    • https://www.tiad-mtm.com/assets/admin/js/plugins/kcfinder/upload/files/pofugar.pdfIn PDF document text
    • http://motivationandmomentum.net/ci/userfiles/files/61096076228.pdfIn PDF document text
    • http://reklama-opole.pl/userfiles/file/67845757514.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622d61059cfd3---zesok.pdfIn PDF document text
    • http://alothongtin.com/upload/FCK/file/86896898771.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/a5c023c4f79933fab77612584746d4c7/26045539509.pdfIn PDF document text
    • https://petpetmates.com/files/editor/file/ridikarosunaxadopixika.pdfIn PDF document text
    • http://officinedesign.it/userfiles/files/67815120699.pdfIn PDF document text
    • http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1622307347b5bd---20105224389.pdfIn PDF document text
    • http://remont-elektro.eu/archiv/file/wojitowojibokakizifuwo.pdfIn PDF document text
    • https://nusantarabet4d1.com/contents/files/bukot.pdfIn PDF document text
    • http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623271f5c760d---govepa.pdfIn PDF document text
    • http://jfbook.com/userfiles/file/mivifugibifodo.pdfIn PDF document text
    • http://sotel-perm.ru/site/file/26800997296.pdfIn PDF document text
    • https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/b1cd272c8f07cc21c5cc60321790ebd3/donilapakejaxepasale.pdfIn PDF document text
    • http://citty.org/images/uploads/file/71673159511.pdfIn PDF document text
    • https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/1620f3992f2287---74571699468.pdfIn PDF document text
    • http://elmarahtravel.com/public/kcfinder/upload/files/zapamalosunebej.pdfIn PDF document text
    • http://eapver.com/upload/ckimg/files/202202041119334264.pdfIn PDF document text
    • http://hinoki-machine.com/upload/file/91270867987.pdfIn PDF document text
    • https://leganordavigliana.it/uploads/file/babemizotelomasapaduke.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000487db.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000487db.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000487db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x487DB 24244 bytes
SHA-256: 10246d72a0bbc3bc73b0a9176776f804d27630002a7804137cc4ecc165f8f676
font_01_sfnt_off0004c754.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C754 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0004de74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DE74 10564 bytes
SHA-256: cb9c3894aa214de77f1ecb65d4a268f9fdc6d884a087bb57b457564c9e15af83
font_03_sfnt_off0004f6bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F6BC 16160 bytes
SHA-256: 4ac500d6e3c0ff81b9d7bba6b662cc1b6c57f4f8b05facc13edcda647588841f